'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')

function resolve(dir) {
    return path.join(__dirname, dir)
}

const name = defaultSettings.title || 'vue Admin Template' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9528 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
    css: {
        loaderOptions: {
            postcss: {
                plugins: [
                    require("postcss-plugin-px2rem")({
                        // 在这里，由于我的设计稿尺寸的屏幕分辨率是1920，具体原因如下：
                        rootValue: 192, // 设计稿尺寸/10
                    }),
                ],
            },
        },
    },
    /**
     * You will need to set publicPath if you plan to deploy your site under a sub path,
     * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
     * then publicPath should be set to "/bar/".
     * In most cases please use '/' !!!
     * Detail: https://cli.vuejs.org/config/#publicpath
     */
    publicPath: "/",
    outputDir: "dist",
    assetsDir: "static",
    lintOnSave: process.env.NODE_ENV === "development",
    productionSourceMap: false,
    devServer: {
        headers: {
            // 'Access-Control-Allow-Origin': '*', // 或者你的源地址
            'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, PATCH, OPTIONS',
            'Access-Control-Allow-Headers': 'Origin, X-Requested-With, Content-Type, Accept'
        },
        port: port,
        open: true,
        overlay: {
            warnings: false,
            errors: true,
        },
        proxy: {
            "/": {
                target: "http://www.huaicaikeyu.com/index.php?s=",
                // target: "http://192.168.2.142:8000",
                changeOrigin: true,
                pathRewrite: {
                    "^/api": "",
                },
            },
            '/api': {
                target: 'https://www.163.com/',
                changeOrigin: true, // 如果目标服务器需要携带原始请求头，设置为 true
                pathRewrite: {
                    '^/api': '' // 将所有 /api 开头的请求路径重写为空字符串
                }
            }
        },
        // before: require('./mock/mock-server.js')
    },

    configureWebpack: {
        // provide the app's title in webpack's name field, so that
        // it can be accessed in index.html to inject the correct title.
        name: name,
        resolve: {
            alias: {
                "@": resolve("src"),
            },
        },
        module: {
            rules: [
                // ...
                {
                    test: /\.js$/, // 匹配所有的.js文件
                    exclude: /(node_modules|bower_components)/, // 排除node_modules和bower_components目录
                    use: {
                        loader: 'babel-loader', // 使用babel-loader处理.js文件
                        options: {
                            presets: ['@babel/preset-env'] // 使用@babel/preset-env预设
                        }
                    }
                }
                // ...
            ]
        }
    },
    chainWebpack(config) {
        // it can improve the speed of the first screen, it is recommended to turn on preload
        config.plugin("preload").tap(() => [
            {
                rel: "preload",
                // to ignore runtime.js
                // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
                fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
                include: "initial",
            },
        ]);

        // when there are many pages, it will cause too many meaningless requests
        config.plugins.delete("prefetch");

        // set svg-sprite-loader
        config.module.rule("svg").exclude.add(resolve("src/icons")).end();
        config.module
            .rule("icons")
            .test(/\.svg$/)
            .include.add(resolve("src/icons"))
            .end()
            .use("svg-sprite-loader")
            .loader("svg-sprite-loader")
            .options({
                symbolId: "icon-[name]",
            })
            .end();

        config.when(process.env.NODE_ENV !== "development", (config) => {
            config
                .plugin("ScriptExtHtmlWebpackPlugin")
                .after("html")
                .use("script-ext-html-webpack-plugin", [
                    {
                        // `runtime` must same as runtimeChunk name. default is `runtime`
                        inline: /runtime\..*\.js$/,
                    },
                ])
                .end();
            config.optimization.splitChunks({
                chunks: "all",
                cacheGroups: {
                    libs: {
                        name: "chunk-libs",
                        test: /[\\/]node_modules[\\/]/,
                        priority: 10,
                        chunks: "initial", // only package third parties that are initially dependent
                    },
                    elementUI: {
                        name: "chunk-elementUI", // split elementUI into a single package
                        priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
                        test: /[\\/]node_modules[\\/]_?element-ui(.*)/, // in order to adapt to cnpm
                    },
                    commons: {
                        name: "chunk-commons",
                        test: resolve("src/components"), // can customize your rules
                        minChunks: 3, //  minimum common number
                        priority: 5,
                        reuseExistingChunk: true,
                    },
                },
            });
            // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
            config.optimization.runtimeChunk("single");
        });
    },
};
